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    SubjectRe: [PATCH 0/9] Containers (V9): Generic Process Containers
    On 4/30/07, Srivatsa Vaddagiri <> wrote:
    > On Sun, Apr 29, 2007 at 02:37:21AM -0700, Paul Jackson wrote:
    > > It builds and boots and mounts the cpuset file system ok.
    > > But trying to write the 'mems' file hangs the system hard.
    > Basically we are attempting a read_lock(&tasklist_lock) in
    > container_task_count() after taking write_lock_irq(&tasklist_lock) in
    > update_nodemask()!

    Paul, is there any reason why we need to do a write_lock() on
    tasklist_lock if we're just trying to block fork, or is it just
    historical accident? Wouldn't it be fine to do a read_lock()?

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